Closed-end trailer hitch lock



FIG. 1 is a perspective view of a closed-end trailer hitch lock showing my new design;

FIG. 2 is a first side view, the second side view of which is an identical mirror image, of the closed-end trailer hitch lock;

FIG. 3 is a first end view of the closed-end trailer hitch lock;

FIG. 4 is a bottom view of the closed-end trailer hitch lock;

FIG. 5 is a top view of the closed-end trailer hich lock; and,

FIG. 6 is a second end view of the closed-end trailer hitch lock. 

The ornamental design for a closed-end trailer hitch lock, as shown and described. 